The SecurityPlus SP-101 is our entry level security system that will provide a good layer of protection over your vehicle. The system includes (2) Ultra-slim style 4-button transmitters, a single-stage, single-adjustment shock sensor, 20W high-power single-tone siren, LED light and valet switch, and a starter kill output. This state-of-the-art security system also includes the high-demand convenience feature of keyless entry.